#!/bin/bash

# Slackware build script for libROM

# Copyright 2022 William PC, Seattle (USA)
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=libROM
VERSION=${VERSION:-1.0.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;


if [ ${MFEM:-no} == "yes" ]; then
  OPTS="-DUSE_MFEM:BOOL=ON -DHYPRE_INCLUDES:STRING=/usr/include/hypre -DPARMETIS_INCLUDES:STRING=/usr/include/parmetis"
  # don't build examples
  sed -i '128s/if (USE_MFEM)/if ((USE_MFEM) AND (BUILD_EXAMPLES))/' CMakeLists.txt
fi

mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DBUILD_STATIC:BOOL=OFF \
    $OPTS \
    -DCMAKE_BUILD_TYPE=Release ..
  make
  cd tests; for file in smoke_test test_include; do echo "Running $file"; ./$file; done; cd -
  # none install rule
cd ..

install -d $PKG/usr/lib${LIBDIRSUFFIX}
install -m 755 build/lib/libROM.so $PKG/usr/lib${LIBDIRSUFFIX}

install -d $PKG/usr/include/$PRGNAM
install -m 644 lib/{CAROM_config,FCMangle,librom}.h $PKG/usr/include/$PRGNAM
cp -a lib/{algo,hyperreduction,linalg,mfem,utils} $PKG/usr/include/$PRGNAM

# install examples
mkdir -p $PKG/usr/share/$PRGNAM-$VERSION
cp -av examples $PKG/usr/share/$PRGNAM-$VERSION
cat << EOF > $PKG/usr/share/$PRGNAM-$VERSION/examples/build-all.sh
for file in \$(ls {dmd,prom}/*.cpp);do
  echo "compiling \$file"
  g++ -o \${file%%.*}  \$file -I/usr/include -I/usr/include/hypre -I/usr/include/libROM -Wl,-rpath -Wl,/usr/lib${LIBDIRSUFFIX} -Wl,--enable-new-dtags -pthread -lROM -Wl,-rpath -Wl,/usr/lib64 -Wl,--enable-new-dtags -pthread -lscalapack -lmpi -lhdf5 -llapack -lblas -lmfem -lHYPRE -lparmetis -lmetis
done
EOF


# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  COPYRIGHT LICENSE-APACHE LICENSE-MIT NOTICE docs \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
